Particle and Aerosol Research Vol. 15, No. 1, March 2019, Pages 37-44 |
ISSN : 1738-8716 (Print) ISSN : 2287-8130 (Online) |
Characteristics of Indoor Particulate Matter Concentrations by Size at an Apartment House During Dusty-Day
Sang-Woo Joo1)⋅Jun-Ho Ji1)*)
1)EcoPictures Co., Ltd., Seoul, Korea
*Corresponding author. E-mail: caputjun@gmail.com
Received 01 January 1970, Revised 25 March 2019, Accepted 28 March 2019, Available online 31 March 2019
http://dx.doi.org/10.11629/jpaar.2019.15.1.037
Abstracts
It is recommended for the public to stay at home and to close the doors and windows when a high-particulate-matter environment such as a yellow sand event occurs outside. However, there are lack of empirical studies describing how much outdoor PM infiltrates into a closed house and how much indoor PM an inhabitant is exposed to during the period. In this study, the PM10 and PM2.5 were measured at the kitchen in an apartment house
by an optical particle counter for 3 days including a yellow sand event. The outdoor PMs and the outdoor wind speeds were referred from surrounding weather stations. We analyzed the penetration of PM10-2.5 and PM2.5 at the test
house against the outdoor wind speed supposed corresponding to the change of air exchange rate. In addition, the effect of an indoor activity on change in the indoor PM was investigated. In result, the indoor PM10-2.5 was very low
even a yellow sand event occurred outside; rather, a contribution of indoor activities to increase in PM10-2.5 was
higher. In contrast, the indoor PM2.5 fluctuated following the outdoor PM2.5 trend at high wind speeds or remained
almost constant at low wind speed.
Keywords
Yellow sand (Asian dust), Apartment building, PM10, PM2.5, PM10-2.5
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